EP 0679956 B1 20001102 - Electrophotographic carrier particle compositions comrpising covering agents and process of the preparation of the same
Title (en)
Electrophotographic carrier particle compositions comrpising covering agents and process of the preparation of the same
Title (de)
Beschichtiungsmittel enthaltende elektrophotographische Trägerteilchenzusammensetzungen und Verfahren zu deren Herstellung
Title (fr)
Compositions de particles porteuses électrophotographiques comprenant des agents de revètement et procédé de préparation
Publication
Application
Priority
JP 11350894 A 19940427
Abstract (en)
[origin: EP0679956A1] This invention provides organic polysiloxanes suitable for use in coating agents in order to manufacture eletrophotography carrier particles with a superior endurance. The coating agents for the electrophotography carriers are characterized by having the organopolysiloxane expressed by the general formula below: <MATH> wherein R<1> is an organic group with 1 to 12 carbon atoms; R<2> is -CmH2m+1 as herein m >/= 3; R<3> is -CnH2n+1 as herein n is either 1 or 2; R<4> is in each case a hydrogen atom or group expressed by formulae (1) and (2) below; and subscripts a, b, c, and d are numbers which satisfy the following conditions of 0.5 < a < 2, 0 < b </= 3, 0 < c </= 3, 0 < d </= 0.5 and 0.5 < a+b+c+d </= 4. <CHEM> and <CHEM> R<5> in the above formulae (1) and (2) is an organic group with 1 to 6 carbon atoms and x in the formula (1) satisfies 1 </= x </= 2.
IPC 1-7
IPC 8 full level
C08G 77/20 (2006.01); C08G 77/26 (2006.01); C08L 83/04 (2006.01); C08L 83/06 (2006.01); G03G 9/113 (2006.01)
CPC (source: EP US)
C08G 77/20 (2013.01 - EP US); C08G 77/26 (2013.01 - EP US); G03G 9/1136 (2013.01 - EP US); Y10T 428/29 (2015.01 - EP US); Y10T 428/2982 (2015.01 - EP US); Y10T 428/31663 (2015.04 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0679956 A1 19951102; EP 0679956 B1 20001102; DE 69519246 D1 20001207; DE 69519246 T2 20010613; JP 3403805 B2 20030506; JP H07295303 A 19951110; US 5609958 A 19970311
DOCDB simple family (application)
EP 95302806 A 19950426; DE 69519246 T 19950426; JP 11350894 A 19940427; US 57357995 A 19951215